Diving mask



FIG. 1 is a front perspective elevational view of the diving mask of the invention;

FIG. 2 is a right side view of the diving mask of FIG. 1, the left side being identical;

FIG. 3 is a front view of the diving mask of the invention;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view of the present diving mask; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of the strap in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a diving mask, as shown and described. 